2 layers174 × 58 mm
Breakout 112pin Connector
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
42 parts1.2k
2 layers127 × 76.2 mm
EOSAS PCB v1.0
XcapeCodes/EOSASEmbedded imaging system integrating ESP32-CAM, C/C++ firmware, a custom PCB, computer vision, and machine learning.
- Size
- 127 × 76.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 56
- Pads
- 144
- Tracks, vias
- 439, 26
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 Jun 2026
- Updated
- 17 Aug 2026
Overview
EOSAS PCB v1.0 is an open-source printed circuit board by XcapeCodes, from the XcapeCodes/EOSAS repository on GitHub, published under the MIT licence. It is a 2-layer board of 127 × 76.2 mm with 42 parts on 56 nets, routed with 439 tracks and 26 vias.
Its parts include 11 resistors, 9 connectors, 5 diodes, 3 capacitors and 2 switches. It belongs with the ESP32 and RISC-V boards of this library.
README
PCB/README.md← Back to main EOSAS documentation
EOSAS PCB v1.0
EOSAS PCB v1.0 is a custom dual-MCU carrier board designed to replace the breadboard wiring used in the original EOSAS prototype and consolidate the system electronics onto a dedicated PCB.
Current Status
Design complete — fabrication and physical validation pending.
- Schematic completed
- PCB routing completed
- ERC passed
- DRC passed
- Ground plane completed
- Silkscreen and module outlines added
- 3D board layout reviewed
PCB Features
- Particle Argon and ESP32-CAM integration
- USB-C 5 V power input
- Input fuse and power control
- Power status indicator
- TEMT6000 optical sensor interface
- MOSFET-controlled white scan illumination
- Low / Medium / High hazard indicator LEDs
- Separate power and scan controls
- ESP32 programming header
- Expansion interface
- External illumination connector
- Debug test points
- ESP32-CAM bulk capacitance for power stability
- Four mounting points for enclosure integration
Design
Schematic
PCB Layout
3D Render
Architecture
The Particle Argon serves as the primary hardware controller, managing user inputs, illumination, optical sensing, and hazard indicators. The ESP32-CAM handles image acquisition and communication with the EOSAS inference server.
The two controllers communicate through the PCB's dedicated interface, allowing the embedded hardware and image-processing pipeline to operate as one system.
Next Steps
- Complete final pre-fabrication review
- Generate manufacturing files
- Fabricate PCB v1.0
- Assemble and perform board bring-up
- Validate power rails and interfaces
- Test Argon-to-ESP32 communication
- Calibrate optical sensing and scan illumination
- Integrate PCB into the final EOSAS enclosure
- Complete full system validation
EOSAS is an experimental engineering project and is not intended to provide medical diagnoses.
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4, R5 |
| 3 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R10, R11 |
| 2 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6, R8 |
| 2 | 5.1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 1 | 0.1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
| 1 | 1.5A_POLYFUSE | Fuse:Fuse_Bourns_MF-RG500 | F1 |
| 1 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.5mm | TP3 |
| 1 | 470uF_ESP32_BULK | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C3 |
| 1 | 5V | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | ARGON_LEFT_SOCKET | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | J2ARGON_LEFT1 |
| 1 | ARGON_RIGHT_SOCKET | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J3ARGON_RIGHT1 |
| 1 | ARGON_RX | TestPoint:TestPoint_Pad_D1.5mm | TP5 |
| 1 | ARGON_TX | TestPoint:TestPoint_Pad_D1.5mm | TP4 |
| 1 | ESP32_CAM_LEFT_SOCKET | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J3ESP32_LEFT1 |
| 1 | ESP32_CAM_RIGHT_SOCKET | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J2ESP32_RIGHT1 |
| 1 | ESP32_PROG_HEADER | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6ESP32_PROG1 |
| 1 | EXPANSION_HEADER | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J8EXPANSION1 |
| 1 | EXT_PWR_SW | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | SW1 |
| 1 | EXT_WHITE_LED | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | J2 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | HIGH_HAZARD_LED | LED_THT:LED_D5.0mm | D5 |
| 1 | IRLZ44N_LED_DRIVER | Package_TO_SOT_THT:TO-220-3_Vertical | Q2 |
| 1 | LOW_HAZARD_LED | LED_THT:LED_D5.0mm | D3 |
| 1 | MED_HAZARD_LED | LED_THT:LED_D5.0mm | D4 |
| 1 | PWR_LED | LED_THT:LED_D5.0mm | D1 |
| 1 | SCAN_RESET_BTN | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | SW2_BUTTON1 |
| 1 | SCAN_WHITE_LED | LED_THT:LED_D5.0mm | D2 |
| 1 | SENSOR_OUT | TestPoint:TestPoint_Pad_D1.5mm | TP6 |
| 1 | TEMT6000_SENSOR | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J7TEMT6000 |
| 1 | USB_C_5V_IN | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
How big is the EOSAS PCB v1.0 PCB?
It measures 127 × 76.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EOSAS PCB v1.0 use?
42 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the EOSAS PCB v1.0 KiCad files?
From the XcapeCodes/EOSAS repository on GitHub, at the commit this page was made from: the board is PCB/EOSAS_PCB_v1.0.kicad_pcb and its schematic PCB/EOSAS_PCB_v1.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EOSAS PCB v1.0 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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